Surface and jet condenser.



M. LEBLANC.

SURFACE AND JET CONDENSER. APPLICATIQN FILED FEB. 19, 1914.

1 1,409.. Patented Apr. 2, 1918.

IN VE N TOR,

, IFFI@@ MAURICE LEBLANC, F VAL SUR-SEINE, GROISSY, FRANCE, ASSIGNOR TO SOGIETE ANONYME POUR LEXPLOI'IATION DES PROCEDES WESTINGHOUSE-LEBLANC, 0F

PARIS, FRANCE.

SURFACE AND JET CONDENSER.

Specification of Letters Patent.

Patented Apr. 2, I918.

Application filed February 19, 1914. Serial No. 819,764.

'Val-sur-Seine, Oroissy, France, have made a new and useful Invention in Surface and Jet Condensers, of which the following is a specification.

In employing air pumps of the Westinghouse Leblanc system it is possible with only one pump to extract the noncondensable gases from two different points or locations where difl'erent pressures prevail.

The present invention has, for an object to produce improved means for withdrawing airor non-condensable fluids from a condenser in which the above mentioned property of the Westinghouse Leblanc air pump is employed.

A further object is to produce new and improved means for compressing air or noncondensable fluids from two sources of dif ferent pressures.

These and other objects, which will be made apparent throughout the further description of the invention are attained by means of apparatus embodying the features herein described and illustrated in the single sheet drawing accompanying and forminga part hereof.

In the drawing I have illustrated somewhat diagrammatically a jet type of con denser'in connection with means embodying my invention for withdrawing the non-condensable gases or air from the condenser. As illustrated, the condenser consists of a shell. 3, which is provided with a port 4, communicating with a source of steam or vapor to be condensed, a nozzle F for delivering condensing water to the condenser, and a condensing chamber A, through which the water delivered by the nozzle F falls and from which air or non-condensable gases are withdrawn through an air off-take port 6. Water is delivered to the nozzle F through a passage F, and the chamber A is provided with a water delivery passage 7, which communicates with a' pump (not shown) and through which the condensing water and the water of condensation are discharged.

.The air off-take port 6 communicates with the intake port 8 of a pump 9 through a passage B. As illustrated, the pump includes a convergent divergent passage 10, which receives water or other liquid from a partial ejection rotatable impeller 11, and which communicates at its inlet end with the port 8 and at its discharge end with the region of higher pressure to which the noncondensable gases withdrawn from the condenser are discharged. The tube 10, as illustrated, consists of a convergent combining tube 10*, the convergent endof which terminates in a combining chamber 12, and a divergent difi'user 18, which is axiallv alined with the convergent end of the tube 10 and is adapted to receive liquid. and non-condensable gases discharged therefrom. The rotatable impeller 11 receives liquid through a nozzle 14;, so located and arranged that the blades of the impeller will discharge liquid in the form of thin leaves or sheets into the combining tube I0 at a point intermediate its ends, and will project the leaves so discharged toward the convergent end of the tube. a

As illustrated, air and non-condensable fluid are also withdrawn from the chamber A of the condenser through a passage B, which communicates with the port 6 and with the inlet port 15 of a liquid actuated ejector D. The outlet of the ejector D communicates with a receiver G, which is provided with a port H communicating with the chamber 12 of the pump 9 through a passage I. It may be said that the passage I communicates with the throat of the combined convergent divergent tube 10.

The receiver G is shown provided with a cylindrical apron 15, which intervenes be tween the discharge port of the ejector D, and a water discharge port K, with which the receiver is provided. In the drawing, this port K is shown communicating with a discharge passage J communicating with the chamber A of the condenser. As illustrated, the water discharged from the ejector D will seal the port K, and will .be delivered through the port back to the condenser, where it will mix with the water of condensation and the condensed water and be discharged through the passage 7. It i will be understood that the port K may communicate with any discharge passage capable of discharging the water from the receiver.

WVater is delivered tothe e ector D from any suitable source of water under pressure through a pipe F This pipe F may comafter partially compressing it, delivers it to the throat of the combined tubes and 13; The air or fluid so delivered is withdrawn into the tube 13 by the injection ac- 15 tion of the liquid issuing from the convergent end of the tube 10*, and it is further compressed by the action of the liquid as it traverses the tube 13.

Having thus described my invention, what I claim is:

1. The combination of a fluid compressor, comprising a combining tube having an inlet for fluid to be compressed, a combining chamber communicatin with the outlet of the combining tube and having a fluid admission port, and a diffuser communicating with the combining chamber, and means for artiall compressing fluid and delivering it to said fluid admission port of the combining chamber.

2. The combination of a fluid compressor comprising a tube provided with an inlet and an outlet for fluid to be compressed, means for projecting a stream of liquid into said tube between the inlet and outlet thereof and means for partially compressing a fluid and for delivering it to said tube at a point between the entrance point of the liquid into said tube and the fluid outlet of said tube.

3. In combination with a condenser, an air pump comprising a casing having an inlet port, a combinin tube communicating with said port, a com ining chamber communicating with the combining tube, a diffuser communicating with the chamber, and a partial ejection rotatable impeller for delivering water to the combining tube at a point intermediate the inlet and discharge thereof, and for discharging the water through the tube, a passage communicating with the air off-take of the condenser and With-said inlet port, means communicating with the interior of the condenser, for withdrawing fluid therefrom, for partially compressing the fluid and for delivering it to said chamber of said pump.

4. In combination with a condenser, an air pump comprising a casing including a convergent divergent tube and a partial e ect-ion rotatable impeller for delivering water at a high velocity to the tube at a point intermediate its ends and for projecting the water through the tube, a passage communicatingwith the air oiftake of the condenser and with the inlet of said tube, a second passage communicating with the interior of the condenser and a water ejector communicating with said second passage for withdrawing noncondensable fluid from the condenser, for partially compressing the fluid and for delivering it to the tube of said pump.

5. In combination with an ejector having an inlet and an outlet for fluid to be ejected and a combining chamber between the inlet and the outlet and through which the ejected fluid and ejecting fluid pass, a second ejector for compressing a fluid above the pressure maintained at the inlet to the first ejector and for delivering the fluid so compressed to the combining chamber of the first ejector.

6. In combination with a condenser having an air ofltake, an air pump having an inlet port, a combining chamber, and a diffuser, a passage communicating with the air ofi'take of the condenser and with the inlet of the pump, a second passage communicating with the condenser, and means communicating with the second passage for partially compressing the air delivered therethrough and for delivering the air so compressed to' the combining chamber of the pump.

7 In combination with a condenser, having a non-condensable fluid ofltake port, a fluid ejecting device comprisin a convergent combining tube having 1ts inlet in communication with the ofl'take port of the condenser, a divergent difi'user communicating with the outlet of the tube and having its outlet in communication with a region of pressure higher than that existing in the condenser, and means .for rojecting a stream of ejecting fluid througli the combining tube and the diffuser, and auxiliary means for withdrawing non-condensable fluid from the condenser for compressing the fluid to a pressure less than the pressure maintained at the outlet of the diffuser and for delivering the fluid so compressed to the device at the point of communication of the tube and the diffuser.

8. In combination with a condenser, a fluid ejecting device for withdrawing noncondensable fluid from the condenser and comprising a tube provided with a fluid inlet communicating with the condenser and a fluid outlet, and means for projecting a stream of liquid into the tube and through the outlet thereof, and auxiliary means for withdrawing non-condensable fluid from the condenser for compressing the fluid so withdrawn to a pressure less than the pressure existing at the outlet of said device 126.

and for dehvering the fluid so compressed to the tube at a point intermediate its inlet and outlet.

9. In combination with a condenser, a fluid ejecting device, comprising a combining tube communicating with the condenser, a diffuser communicating with the outlet of the combining tube, and means for introducing ejecting fluid into the combining tube intermediate the inlet and outlet thereof, and a second fluid ejecting device communicating with said condenser and discharging fluid Withdrawn therefrom into the first device between the combining tube and the diffuser thereof.

10. In combination with a condenser, a fluid ejecting device, co'mprisinga combining tube, the inlet of whlch communicates with the condenser, a diifuser communicating with the outlet of the combining tube, and a rotatable impeller for delivering a stream of water at a high velocity into the water discharged from the ejector into said condenser.

11. A fluid e ector comprising a conver- Gopies of this patent may be obtained for its outlet with the atmosphere, an

gent divergent tube having an inlet and an outlet for fluid to be ejected, and "means for delivering ejecting fluid ,into and through said tube, in combination with a second ejecting device for compressing fluid to be ejected to a pressure above that normally maintained at the inlet to said ejector and for delivering the fluid so compressed to the throat of said convergent divergent tube.

12. In combination with a condenser having an air ofi'take port, an ejector comprising a convergent divergent tube communicating at its inlet end with said port and at means for delivering ejecting fluid into and through said tube, and a second ejecting device for withdrawing fluid from said condenser, partially compressing the fluid, and for delivering the partia 1y compressed fluid to the throat of said tube.

In testimony whereof, I have hereunto subscribed my name this 2nd day of February, 1914.

MAURICE LEBLANG.

Witnesses:

HANSON C. Coxn, ANDRE TROLLER.

five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

